“Always do sober what you said you'd do drunk. That will teach you to keep your mouth shut!”
From a set of "rules for life" sent to publisher Charles Scribner IV; quoted in Scribner's memoir In the Company of Writers (New York: Scribner, 1991), p. 64 https://books.google.com/books?id=yYdHGtlgIsYC&pg=PA64&dq=hemingway+%22rules+for+life%22&hl=en&sa=X&ved=0ahUKEwj-zvyfgNDMAhUJ_mMKHU6zDrYQ6AEIIzAB#v=onepage&q=%20%22rules%20for%20life%22&f=false
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Ernest Hemingway 501
American author and journalist 1899–1961Related quotes
“You are a shithead, Williamson. If you can't think on your feet you oughta keep your mouth shut.”
Glengarry Glen Ross (1993), Shelley Levene

Source: Following the Equator: A Journey Around the World

“You couldn’t keep your mouth shut? I’m calling you Glitterhair from now on. Or Talksalot.”
Source: The Exiled Queen

Source: The Diary of a Young Girl

“If you only ever read one book in your life… I highly recommend you keep your mouth shut.”
Attention Scum! (2001), How To Live (2005)